Mass: 18.015 Da / Num. of mol.: 731 / Source method: isolated from a natural source / Formula: H2O
Sequence details
1. THE CONSTRUCT USED FOR REFINEMENT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE ...1. THE CONSTRUCT USED FOR REFINEMENT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY RESIDUES 1-187 OF THE TARGET SEQUENCE. 2. THE CRYSTAL USED FOR SAD PHASING WAS FROM AN N-TERMINAL TRUNCATED CONSTRUCT. THE CONSTRUCT USED THE SAME TEV-CLEAVED TAG FOLLOWED BY RESIDUES 34-187 OF THE TARGET SEQUENCE.
-
Experimental details
-
Experiment
Experiment
Method: X-RAY DIFFRACTION / Number of used crystals: 2
-
Sample preparation
Crystal
ID
Density Matthews (Å3/Da)
Density % sol (%)
Description
1
2.35
47.66
TWO CRYSTALS WERE USED FOR THE SOLUTION OF THIS STRUCTURE. 2.50 ANGSTROM SAD DATA COLLECTED FROM A CRYSTAL IN SPACE GROUP P3121 WERE USED TO PHASE AND TRACE AN INITIAL MODEL. THIS MODEL WAS THEN USED FOR MOLECULAR REPLACEMENT AGAINST A CRYSTAL IN SPACE GROUP P21 THAT DIFFRACTED TO 2.0 ANGSTROMS. REFINEMENT WAS AGAINST THE AMPLITUDES FROM THE P21 CRYSTAL. NOTE THAT THE TWO CRYSTALS ARE FROM SLIGHTLY DIFFERENT PROTEIN CONSTRUCTS. THE P3121 SAD PHASING CRYSTAL IS OF A TRUNCATED CONSTRUCT (RESIDUES 34-187), WHILE THE P21 CRYSTAL USED FOR REFINEMENT WAS FROM THE FULL LENGTH CONSTRUCT, RESIDUES 1-187.
Resolution: 2→29.814 Å / Num. obs: 138837 / % possible obs: 84.6 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 21.909 Å2 / Rmerge(I) obs: 0.058 / Net I/σ(I): 7.38
Reflection shell
Resolution (Å)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. unique obs
Diffraction-ID
% possible all
2-2.07
0.354
1.6
5368
12737
1,2
41.9
2.07-2.15
0.304
1.9
7970
16660
1,2
55.3
2.15-2.25
0.23
2.5
13005
24091
1,2
75.4
2.25-2.37
0.186
3.3
20920
29732
1,2
94.6
2.37-2.52
0.145
4.2
22565
30167
1,2
95.9
2.52-2.71
0.117
5.2
22541
29400
1,2
96.7
2.71-2.99
0.085
6.9
23833
30736
1,2
96.4
2.99-3.42
0.055
10.3
23314
29912
1,2
97
3.42-4.3
0.037
14.6
23186
29921
1,2
96.8
4.3-29.814
0.028
16.7
23505
29561
1,2
94.6
-
Phasing
Phasing
Method: SAD, molecular replacement
-
Processing
Software
Name
Version
Classification
NB
REFMAC
5.4.0066
refinement
PHENIX
refinement
MolProbity
3beta29
modelbuilding
PDB_EXTRACT
3
dataextraction
MAR345
CCD
datacollection
XDS
datareduction
MOSFLM
datareduction
XSCALE
datascaling
SCALA
datascaling
SHARP
phasing
MOLREP
phasing
Refinement
Method to determine structure: SAD, MOLECULAR REPLACEMENT / Resolution: 2→29.814 Å / Cor.coef. Fo:Fc: 0.957 / Cor.coef. Fo:Fc free: 0.928 / SU B: 9.244 / SU ML: 0.124 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.194 / ESU R Free: 0.175 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE ...Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 3. ATOM RECORD CONTAINS RESIDUAL B FACTORS ONLY. 4. CHAIN L, PARTICULARLY THE FIRST 60 RESIDUES, IS LOCATED IN WEAK DENSITY. 5. PEG AND CL WERE MODELED BASED ON CRYSTALLIZATION CONDITIONS. 6. RAMACHANDRAN OUTLIERS ARE IN POOR DENSITY.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.225
6959
5 %
RANDOM
Rwork
0.171
-
-
-
obs
0.174
138822
87.53 %
-
Solvent computation
Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
In the structure databanks used in Yorodumi, some data are registered as the other names, "COVID-19 virus" and "2019-nCoV". Here are the details of the virus and the list of structure data.
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)
EMDB accession codes are about to change! (news from PDBe EMDB page)
The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
The EM Navigator/Yorodumi systems omit the EMD- prefix.
Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator
Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.
Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi